![]() Organic material was largely resistant to degradation under all treatments. Hydrochloric acid based descalers (Rydlyme®, 3H® and Dynamic Descaler®) were more effective than phosphoric acid (Barnacle Buster®) and acid-surfactant (Triple 7 Enviroscale Plus®) treatments. Circulating treatments increased mussel mortality and decay rate in hydrochloric and acid-surfactant descalers, but had no detectable effect on total degradation after 24h. Warming descaling solutions (from 11 to 26☌) significantly increased the rate of mussel mortality, decay and total degradation in all treatments. Increasing the concentration of hydrochloric, phosphoric and acid-surfactant descalers from 25 to 75% did not increase the rate or total degradation of the mussel, Mytilus planulatus. Laboratory experiments found calcium carbonate (CaCO3) degradation varied up to 29% (from 111 to 143 g/l) amongst seven products tested. ![]() ![]() This study assessed the efficacy of commercially available descalers and factors that influence their efficacy as tools for marine biosecurity management.
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